---
product_id: 805840678
title: "1-Pack 21700 Battery Holder Kit, DIY Energy Storage Bracket, Tool-Free Assembly, PC+ABS Fireproof Case, M3 Copper Screws, Supports 1S8P, 2S4P, 4S2P, 8S1P (2x4 Slot, Batteries Not Included)"
brand: "bistook"
price: "$55.39"
currency: USD
in_stock: true
category: "Bistook"
url: https://www.desertcart.ec/products/805840678-1-pack-21700-battery-holder-kit-diy-energy-storage-bracket
store_origin: EC
region: Ecuador
---

# Supports 1S8P to 8S1P configs V0-rated fireproof PC+ABS case Tool-free assembly, no welding 1-Pack 21700 Battery Holder Kit, DIY Energy Storage Bracket, Tool-Free Assembly, PC+ABS Fireproof Case, M3 Copper Screws, Supports 1S8P, 2S4P, 4S2P, 8S1P (2x4 Slot, Batteries Not Included)

**Brand:** bistook
**Price:** $55.39
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your projects with plug-and-play precision!

## Quick Answers

- **What is this?** 1-Pack 21700 Battery Holder Kit, DIY Energy Storage Bracket, Tool-Free Assembly, PC+ABS Fireproof Case, M3 Copper Screws, Supports 1S8P, 2S4P, 4S2P, 8S1P (2x4 Slot, Batteries Not Included) by bistook
- **How much does it cost?** $55.39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/805840678-1-pack-21700-battery-holder-kit-diy-energy-storage-bracket)

## Best For

- bistook enthusiasts

## Why This Product

- Trusted bistook brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile & Reusable:** Ideal for power banks, solar setups, and experimental builds—reconfigure anytime to stay ahead.
- • **Built to Last & Protect:** Fireproof PC+ABS housing ensures your DIY projects stay safe and durable under pressure.
- • **Modular Expansion Ready:** Snap multiple holders together for custom capacity—perfect for evolving energy needs.
- • **Flexible Power Architectures:** Configure from 3.7V to 29.6V with ease—scale your energy storage your way.
- • **Effortless Setup, Zero Soldering:** Tool-free M3 copper screw system means quick assembly and reliable conductivity without the hassle.

## Overview

This 1-pack 21700 battery holder kit features two 2x4 modular slots designed for flat-top lithium batteries, supporting multiple wiring configurations from 3.7V to 29.6V. Its tool-free assembly with M3 copper screws eliminates soldering, ensuring efficient power transfer and easy customization. Encased in durable, V0-rated fireproof PC+ABS plastic, it guarantees safety and longevity for DIY energy storage, solar, and portable power applications.

## Description

Upgrade your DIY energy storage solutions with this 1-pack modular 21700 battery holder, designed for flat-top lithium batteries. The tool-free assembly design enables quick configuration changes without welding, making it ideal for temporary or experimental setups. 🔹 Supports Multiple Configurations – 1S8P (3.7V), 2S4P (7.4V), 4S2P (14.8V), 8S1P (29.6V) Modular expansion – easily combine multiple holders for larger capacity. 🔹 Tool-Free Assembly & M3 Copper Conductors – No welding required! The M3 copper screws ensure stable conductivity, while the secure slot mechanism keeps your battery pack firmly in place. 🔹 Durable PC+ABS Fireproof Housing (V0 Rated) – Made from high-strength PC+ABS plastic, offering heat resistance and durability, ensuring long-term safety. 🔹 Perfect for DIY Energy Projects – Compatible with portable power banks, solar storage, RC applications, and off-grid power solutions. The modular design allows easy assembly, disassembly, and reconfiguration. Package Includes: ✔ 1x 21700 Battery Holder (2x4 slot each) ✔ M3 Copper Conductors & Screws Set

## Features

- 【1-Pack DIY 21700 Battery Holders】 Includes two modular storage brackets (2x4 slot each), designed for flat-top 21700 lithium batteries, allowing flexible configuration for energy storage and power applications.
- 【Tool-Free Assembly - No Welding Required】 Features a screw-based connection system with M3 pure copper contacts, ensuring low internal resistance for efficient power transfer, eliminating the need for soldering.
- 【Customizable Battery Configurations】 Supports multiple wiring setups: 1S8P (3.7V), 2S4P (7.4V), 4S2P (14.8V), 8S1P (29.6V) Easily expand capacity by connecting multiple holders together.
- 【Durable PC+ABS Fireproof Housing (V0 Rated)】 Made from high-strength PC+ABS plastic, ensuring excellent durability, heat resistance, and safety for extended use.
- 【Wide Application & Reusable Design】 Ideal for portable power banks, solar storage, experimental energy setups, and custom battery packs. The modular design allows quick assembly, modification, and disassembly.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0GFV9LDHG |
| Date First Available | March 25, 2023 |
| Item Weight | 12.9 ounces |
| Item model number | 21700-2401 |
| Manufacturer | Bistook |
| Product Dimensions | 3.78 x 2.13 x 4.13 inches |

## Product Details

- **Brand:** Bistook
- **Model Name:** DIY Energy Storage Kit
- **Recommended Uses For Product:** Power Tool
- **Reusability:** Rechargeable
- **Unit Count:** 1.0 Count

## Images

![1-Pack 21700 Battery Holder Kit, DIY Energy Storage Bracket, Tool-Free Assembly, PC+ABS Fireproof Case, M3 Copper Screws, Supports 1S8P, 2S4P, 4S2P, 8S1P (2x4 Slot, Batteries Not Included) - Image 1](https://m.media-amazon.com/images/I/71wVAVry-HL.jpg)
![1-Pack 21700 Battery Holder Kit, DIY Energy Storage Bracket, Tool-Free Assembly, PC+ABS Fireproof Case, M3 Copper Screws, Supports 1S8P, 2S4P, 4S2P, 8S1P (2x4 Slot, Batteries Not Included) - Image 2](https://m.media-amazon.com/images/I/619QNIWtaBL.jpg)
![1-Pack 21700 Battery Holder Kit, DIY Energy Storage Bracket, Tool-Free Assembly, PC+ABS Fireproof Case, M3 Copper Screws, Supports 1S8P, 2S4P, 4S2P, 8S1P (2x4 Slot, Batteries Not Included) - Image 3](https://m.media-amazon.com/images/I/71kgFfJ9I+L.jpg)
![1-Pack 21700 Battery Holder Kit, DIY Energy Storage Bracket, Tool-Free Assembly, PC+ABS Fireproof Case, M3 Copper Screws, Supports 1S8P, 2S4P, 4S2P, 8S1P (2x4 Slot, Batteries Not Included) - Image 4](https://m.media-amazon.com/images/I/71h56J4eTlL.jpg)
![1-Pack 21700 Battery Holder Kit, DIY Energy Storage Bracket, Tool-Free Assembly, PC+ABS Fireproof Case, M3 Copper Screws, Supports 1S8P, 2S4P, 4S2P, 8S1P (2x4 Slot, Batteries Not Included) - Image 5](https://m.media-amazon.com/images/I/71+5r9mmRDL.jpg)

## Available Options

This product comes in different **Style** options.

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**Shop now:** [https://www.desertcart.ec/products/805840678-1-pack-21700-battery-holder-kit-diy-energy-storage-bracket](https://www.desertcart.ec/products/805840678-1-pack-21700-battery-holder-kit-diy-energy-storage-bracket)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-08-24*